KS7010 Linux driver

This driver is based on source code from the Ben Nanonote extra repository [1]
which is based on the original v007 release from Renesas [2]. Some more
background info about the chipset can be found here [3] and here [4]. Thank
you to all which already participated in cleaning up the driver so far!

[1] http://projects.qi-hardware.com/index.php/p/openwrt-packages/source/tree/master/ks7010/src
[2] http://downloads.qi-hardware.com/software/ks7010_sdio_v007.tar.bz2
[3] http://en.qi-hardware.com/wiki/Ben_NanoNote_Wi-Fi
[4] https://wikidevi.com/wiki/Renesas


First a few words what not to do (at least not blindly):

- don't be overly strict with the 80 char limit. Only if it REALLY makes the
  code more readable

Now the TODOs:

- fix codechecker warnings (checkpatch, sparse, smatch). But PLEASE make sure
  that you are not only silencing the warning but really fixing code. You
  should understand the change you submit.
- fix the 'card removal' event when card is inserted when booting
- check what other upstream wireless mechanisms can be used instead of the
  custom ones here

Please send any patches to:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linux Driver Project Developer List <driverdev-devel@linuxdriverproject.org>